test to try and reproduce #620 to no avail

Author: Mpdreamz

Diff for: src/Tests/Nest.Tests.Integration/LowLevel/DynamicNullTests.cs

@@ -0,0 +1,47 @@
+using System.Linq;
+using FluentAssertions;
+using NUnit.Framework;
+using Nest.Tests.MockData.Domain;
+using Elasticsearch.Net;
+
+namespace Nest.Tests.Integration.LowLevel
+{
+	[TestFixture]
+	public class DynamicNullTests : IntegrationTests
+	{
+		[Test]
+		public void Calling_A_Null_Field_Should_Not_Throw_With_Nests_Serializer()
+		{
+			var result = this._client.Raw.Search("{ size: 10}");
+			var hit = result.Response["hits"]["hits"][0];
+			Assert.DoesNotThrow(() => { var x = hit["testfield"]; });
+			var exists = false;
+			Assert.DoesNotThrow(() => { exists = hit["testfield"] != null; });
+			exists.Should().BeFalse();
+			var field = hit["testfield"];
+		}
+		
+		[Test]
+		public void Calling_A_Null_Field_Should_Not_Throw_With_ElasticsearchNet_Serializer()
+		{
+			var client = new ElasticsearchClient();
+			var result = client.Search("{ size: 10}");
+			var hit = result.Response["hits"]["hits"][0];
+				
+			Assert.DoesNotThrow(() => { var x = hit["testfield"]; });
+			var exists = false;
+			Assert.DoesNotThrow(() => { exists = hit["testfield"] != null; });
+			exists.Should().BeFalse();
+			Assert.DoesNotThrow(() => { exists = hit["_index"] != null; });
+			exists.Should().BeTrue();
+
+			var source = hit["_source"];
+			((object) source).Should().NotBeNull();
+			Assert.DoesNotThrow(() => { var x = source["name"]; });
+			string field = source["name"];
+
+			field.Should().NotBeNullOrWhiteSpace();
+		}
+		
+	}
+}

Diff for: src/Tests/Nest.Tests.Integration/Nest.Tests.Integration.csproj

@@ -158,6 +158,7 @@
     <Compile Include="Integration\Filter\BoolFilterTests.cs" />
     <Compile Include="Integration\HighlightTests.cs" />
     <Compile Include="Integration\Query\TermQueryDynamic.cs" />
+    <Compile Include="LowLevel\DynamicNullTests.cs" />
     <Compile Include="Mapping\NotAnalyzedTest.cs" />
     <Compile Include="RawCalls\ReturnTypesTest.cs" />
     <Compile Include="Reproduce\Reproduce487Tests.cs" />
@@ -170,6 +171,7 @@
     <Compile Include="Reproduce\Reproduce319Tests.cs" />
     <Compile Include="Reproduce\Reproduce211Tests.cs" />
     <Compile Include="Reproduce\ReproduceConnectionStallsTests.cs" />
+    <Compile Include="Search\FieldTests\FieldsTest.cs" />
     <Compile Include="Search\NamedFilter\NamedFilterTests.cs" />
     <Compile Include="Search\PercolateTests.cs" />
     <Compile Include="Search\CountTests.cs" />